PDB Statistics: PDB Data Distribution by Molecular Weight (Entity)

Molecular weight is calculated for each chemically distinct component of a PDB structure, e.g. protein, nucleic acid.

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Molecular Weight (Daltons)Number of Entities
< 5K40,477
5K - 10K45,053
10K - 15K73,297
15K - 20K56,352
20K - 25K55,404
25K - 30K43,768
30K - 35K31,812
35K - 40K28,387
40K - 45K21,076
45K - 50K15,765
50K - 55K13,028
55K - 60K9,559
60K - 65K6,621
65K - 70K4,948
70K - 75K3,494
>= 75K28,139